Improvement in lubricating journal-boxes



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@anni i lMWOQ/ 'EPHRAi'M A. ATWooD ANDHARRY H. BoDwELL, or s AN FRAN- IMPROVEMENT IN LU'BRICATING- JOURNAL-BOXES.

The Schedule referred tc in these Letters Patent andmakiug part of the same. l

To all whom 'it4 may concern: l

Be it known thatwe, EPHRAIM A. Arwoon and 'HARRY H. BODWELL, of the city and county of San Francisco, State of California, have invented an Improved Self-Lubricating J ournal-Box; and we do hereby declare the following description and accompanying drawings are sucient to enable any person skilled in the art-or science towhich it most nearly appertains, to make and use 'our said invention or improvements without further invention or experiment.

The nature of our invention is the construction of an improved self-lubricating journal, in which the lubn'cant is contained in a cup or receptacle below the shaft, and is supplied tothe shaft by means of an elastic friction-roller, turning Vin the cup, and having its upper edgepressiugagainst the shaft, by which it receiv'es motion, thus carrying the oil up to the shaft in sufficient quantities and more yparticularly the com# hining therewith-of a returnpassage,by which any surplus oil is carried back into the cup, and not allowed .to overflow and foulthe surrounding parts, and run to Waste.

. To more fully explain our invention,"reference is had to the accompanying drawings, forming a part of this specification, of which- Figure 1 is aside sectional elevation taken through fx, hg. 2.

Figure 2 is an end sectional viewtaken through y y, fig. l.

Similar letters of reference in 'each of the figures indicate like parts.

A is the bottom or bearing of a box, and

B, the cup, which has the ordinary spaces a a, for softmetal linings.

Below thebearing A is placed the oil-cup C.

Withinthis cup is placed the roller D, having its axis E parallel with the lshaftl which` it is intended to lubricate.

This roller is constructed so that the circumference, or the" entire roller,`shall be of rubber, or other elastic material,'and supported at such aV distance below the shaft that it presses against it with suicient force to be revolved by the friction with said shaft when it turns.

The oil, or other lubricant, is placed in the cup C, and is carried up by the roller in quantities suflic1ent to thoroughly lublicate the shaft, -and' keep it in good" running condition.

vNear each., end of the box A are made two small holes, G G, leading downward, and connecting with the interior of the cup C, so that any` surplus oil which would otherwise be discharged at the ends of the Journal, and foul the surrounding parts, will, by this device,

be carried directly back into the cup.

At eachV end of the box, formed by the parts A and B, are circumferential grooves, x x, from the bottom of whichthe oil-passagesG G are formed, and from said passages G diagonally extend the tubes `y y, which carry the oil to the cup C, on each side of the wheel D. The grooves :c :l: catch the overflowing oil and carry it directly back to the reservoir.

In this way we are enabled to construct a self-{ubricating journal, in which Ythere is a certainty of a sufficient supply of oil at all times, without the danger of gumming the passages, that occurs when capillary attraction is depended upon,while, by the return-passages G G, theoverow of oil is'prevented, and much labor in cleaning up is consequently avoided..

A roller made of wood or iron might answer in place of the one above described, but we prefer to construct it of some elastic material. v

Having thus described our invention,

What we clai'in 'as new, and desire to secure by Letters Patent, is4

The box A B, having a reservoir, C, hung below the shaft'F, said box being provided with` circumferential grooves-:t x, passages G G and y y, and with an elasticsurfaced wheel, D, all as herein shown and described.

In witness whereof, we have hereunto set our hands and seals.'

EPHRAIM A. ATWOOD. [L. s.] HARRY H. BODWELL. [L. s.]

Witnesses:

C. W. M. SmTH, J.- L. BOONE.'

` /QQB (htte. gaat A 

